Omron NB-series Operation Manual page 300

3 Functions of NB-Designer
9
General-purpose PLC Control (Expansion)
General PLC Control (Extend) is similar to General PLC Control, but the occupied address is
different, i.e. General PLC Control occupies 4 words while General PLC Control (Extend)
occupies 6 words (extending "word" to "double-word"). Refer to the section of General-purpose
PLC Control for the details.
The method is as follows:
(1) Read Address: Similar to General-purpose PLC Control.
(2) Read Address + 1: Similar to General-purpose PLC Control.
(3) Read Address + 2: Refers to the address offset of the data memory of PLC during the
transmission and it occupies 2 words. Please note that this offset is specified from the
address memory with "Read Address + 6".
(4) Read Address + 4: Refers to 2 words occupation.
3-258 NB-series Programmable Terminals NB-Designer Operation Manual(V106)